TABLE OF CONTENTS EVDO devices (also called access terminals) are data input and output devices that are used to communicate with a nearby access point. EVDO devices may or may not include removable user identity modules (UIMs) that hold service subscription information. The common types of available EVDO devices include external radio modems, PCMCIA cards, radio modules, and dual mode mobile telephones.
A user identity module (UIM) is an optional small "information" card that contains service subscription identity and personal information. This information includes a phone number, billing identification information and a small amount of user specific data (such as feature preferences and short messages). This information can be stored in the card rather than programming this information into the phone itself. This intelligent card, either credit card-sized (ISO format), or the size of a postage-stamp (Plug-In format), can be inserted into any UIM ready wireless device.
External radio modems allow the customer to simply plug in their EVDO device to their USB or Ethernet data port to their desktop or laptop computer. An external modem is a self contained modulator/demodulator (MODEM) that can be connected to a computer or other data processing equipment. External modems are commonly connected to computers via standard connections such as universal serial bus (USB) or RJ-45 Ethernet connections.
EVDO PCMCIA cards can be added to most laptop computers or embedded radio modules which allow devices such as PDAs and Laptops to integrate high-speed wireless without...
